rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P9062/1:b..l rcu: (detected by 1, t=10502 jiffies, g=157949, q=1390 ncpus=2) task:udevd state:R running task stack:26808 pid:9062 tgid:9062 ppid:4985 task_flags:0x40014c flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5504 [inline] __schedule+0x125c/0x6730 kernel/sched/core.c:7228 preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7552 irqentry_exit_to_kernel_mode_preempt include/linux/irq-entry-common.h:468 [inline] irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x205/0xa00 kernel/entry/common.c:167 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674 RIP: 0010:__reset_page_owner+0x72/0x190 mm/page_owner.c:321 Code: 00 00 fc ff df 49 01 df 49 8d 7f 08 48 89 fa 48 c1 ea 03 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 0e 01 00 00 48 89 df 45 8b 7f 08 <0f> b7 dd e8 b6 69 01 00 bf 00 20 00 00 e8 9c d4 ff ff 4c 89 e7 4c RSP: 0018:ffffc90005c67668 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffff88801ec11e90 RCX: ffffffff8285c0cf RDX: 1ffff11003d823d4 RSI: ffffffff82845c9c RDI: ffff88801ec11e90 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffea0001a0e540 R13: 0000013cfdd2600a R14: 0000000000000000 R15: 0000000007dc01b1 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1406 [inline] free_unref_folios+0xa44/0x1710 mm/page_alloc.c:3011 folios_put_refs+0x585/0xaa0 mm/swap.c:1057 free_pages_and_swap_cache+0x30b/0x3b0 mm/swap_state.c:589 __tlb_batch_free_encoded_pages+0xe9/0x280 mm/mmu_gather.c:138 tlb_batch_pages_flush mm/mmu_gather.c:151 [inline] tlb_flush_mmu_free mm/mmu_gather.c:417 [inline] tlb_flush_mmu mm/mmu_gather.c:424 [inline] tlb_finish_mmu+0x1b0/0x810 mm/mmu_gather.c:549 exit_mmap+0x454/0xa00 mm/mmap.c:1313 __mmput+0x12a/0x410 kernel/fork.c:1182 mmput+0x67/0x80 kernel/fork.c:1205 exit_mm kernel/exit.c:610 [inline] do_exit+0x8b1/0x2ae0 kernel/exit.c:992 do_group_exit+0xd5/0x2a0 kernel/exit.c:1147 __do_sys_exit_group kernel/exit.c:1158 [inline] __se_sys_exit_group kernel/exit.c:1156 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1156 x64_sys_call+0x102c/0x1530 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x115/0x870 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fc826ef16c5 RSP: 002b:00007ffc2859b158 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000561e850e7670 RCX: 00007fc826ef16c5 RDX: 00000000000000e7 RSI: fffffffffffffe68 RDI: 0000000000000000 RBP: 0000561e84eb22c0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc2859b1a0 R14: 0000000000000000 R15: 0000000000000000